<div class="row">
    <nav class="nav flex-column col-3">
        <a class="nav-link active"    [routerLink]="['user']" (click)="logoout()" >用户管理</a>
        <a class="nav-link" [routerLink]="['produce']" (click)="logg()" >产品管理</a>
        <a class="nav-link" [routerLink]="['exit']">退出</a>
      </nav>
      <div class="col-md-9">
          <router-outlet></router-outlet>
      </div>
      
</div>

